Question
A man, after making the first investment, earned a total
interest of Rs. 1,09,200 at the end of 3 years. He invested a certain amount at an annual compound interest rate of 20%. At the same time, he invested another sum in two different parts in a scheme. In this scheme, he allocated 40% of the total amount to earn interest at a simple interest rate of (92/3)% per annum, while the remaining portion was invested at a simple interest rate of 20% per annum. Now, if the man had invested the entire amount in a simple interest scheme at a rate of 40% per annum for the same 3-year period, how much more interest would he have earned?Solution
Let the amount invested at compound interest be Rs. 'y' and the amount invested at simple interest be Rs. '5x' So, amount invested at (92/3)% p.a. simple interest = 5x X 0.4 = Rs. '2x' And, amount invested at 20% p.a. simple interest = 5x X 0.6 = Rs. '3x' ATQ; [{2x X (92/3) X 3}/100] + {(3x X 20 X 3)/100} + [y X {(1.2)3 - 1}] = 109200 Or, (46x/25) + (9x/5) + (0.728y) = 109200 Or, (46x + 45x) + 0.728y X 25 = 109200 X 25 Or, 91x + 18.2y = 109200 X 25 Or, 5x + y = 6000 X 25 So, 5x + y = 150000 So, interest the man would've earned had he invested the whole amount at 40% simple interest = {(150000 X 40 X 3)/100} = Rs. 1,80,000 So required profit = 180000 - 109200 = Rs. 70,800
First crops that were cultivated on earth were:
Which of the following is best suited as catch crop?Â
………………… is the process of shedding of ova from the Graafian follicle.
The fertilizer that is mostly used in India contains 46 % N which is granular or in pellet form . Name the fertilizer.
Which one of the following stage present in meiotic cell division but not in mitotic cell Division?
The acidic soils can be reclaimed by the application of ____
The process of removal of undesirable or non-productive animals from herd is called……………………
ICAR has classified soil into
Among the cationic and anionic form of Nitogen, which form of Nitrogen is most preferred for plant uptake.
First variety of mustard developed by somatic hybridization
Relevant for Exams:
